Ocean 100 Exam 2 SDSU (SDSU Oceanography 100) Questions and Answers

Ocean 100 Exam 2 SDSU (SDSU Oceanography 100) Questions and Answers What makes up the water molecule, the charges, the bond angle? - CORRECT ANSWER--Electrons (-) -8 on outer shell -Protons (+) -Neutrons (0) -Nucleus -Atom -Ions When does a water molecule expand? - CORRECT ANSWER-at 105 degrees What's so peculiar about this molecule? - CORRECT ANSWER-it's one of the few molecules that is present on earth in 3 different ways: as a liquid, solid, and gas The kinds of bonds in the water molecule? - CORRECT ANSWER-covalent bonds- o atoms share 2 electrons with H atoms The kinds of bonds connecting all the water molecules together to form liquid? - CORRECT ANSWER-hydrogen bonds What do these bonds lead to? - CORRECT ANSWER-hold the molecules together and take a lot of energy Why is water a polar molecule? - CORRECT ANSWER-because it behaves like an electromagnet What do we call water as a result of this? - CORRECT ANSWER-universal solvent because it dissolves substances What happens to Salt in water? - CORRECT ANSWER-it dissolves What are the three phases of water? - CORRECT ANSWER-Ice- molecules locked in place Liquid- most molecules are connected Gas- independent molecules How does each phase change? - CORRECT ANSWER--Water changes to ice when heats removed -Ice changes to water when you add heat